To be fair to Forbes, the media was all over her as a female Steve Jobs and declaring it the beginning of the girl boss era. A lot of people who criticized her were shut down as being sexist.
Yep, this, sadly... $current_year, everything is *-ism.
But, a good book was written on Holmes and her company: "Bad Blood" - https://www.goodreads.com/book/show/37976541-bad-blood (not affiliated, just a fun read)
There are genuine criticisms to be dished out, but reporting the current valuation of a company as the current valuation of the company doesnt really rank up there.